Update struct.md

moved the note to the right place

docs/sql/data_types/struct.md

@@ -202,6 +202,8 @@ FROM
 Mismatch Type Error: Type STRUCT(x INTEGER) does not match with STRUCT(y INTEGER). Cannot cast STRUCTs - element "x" in source struct was not found in target struct
 ```
 
+> This behavior was introduced in DuckDB v0.9.0. Previously, this query ran successfully and returned struct `{'y': 42}` as column `b`.
+
 A workaround for this is to use [`struct_pack`](#creating-structs) instead:
 
 ```sql
@@ -210,8 +212,6 @@ FROM
     (SELECT {'x': 42} AS a);
 ```
 
-> This behavior was introduced in DuckDB v0.9.0. Previously, this query ran successfully and returned struct `{'y': 42}` as column `b`.
-
 The `row` function can be used to return unnamed structs. For example:
 
 ```sql